So started using it for collaborative editing -- it's awesome overall, I think this has a lot of potential! Two minor gripes: 1) No replies to comments ... com

So started using it for collaborative editing -- it's awesome overall, I think this has a lot of potential! Two minor gripes: 1) No replies to comments ... comments with collaboration need to be conversational 2) No ctrl-z / ctrl-y (expected in any editor, and an annoying realization) Thanks for building this!